yes it's not valid
On Sun, Jun 3, 2012 at 5:36 PM, anugrah <anugrah.agra...@gmail.com> wrote:
> So any string with two same characters is not valid??
>
> for example :
>
> GEEK has E followed by E.
>
> So GEEK is also invalid?
>
> On Jun 3, 1:49 pm, Hassan Monfared <hmonfa...@gmail.com> wrote:
> > bool IsValid(string s)
> > {
> > for(int len=0;len<s.len/2;len++)
> > {
> > int start1=0,start2=len+1;
> > while(start2<s.size())
> > {
> > for(int i=0;i<len && start2+i<s.size() &&
> > s[start1+i]=s[start2+i];i++);
> > if(i==len)
> > return false; //"not valid"
> > start1++;
> > start2++;
> > }
> > }
> > return true; // valid
> >
> >
> >
> >
> >
> >
> >
> > }
> > On Sun, Jun 3, 2012 at 12:52 PM, atul anand <atul.87fri...@gmail.com>
> wrote:
> > > can be done with O(n^2) time complexity..
> >
> > > can it be done with O(n) complexity ???
> >
> > > On 6/3/12, utsav sharma <utsav.sharm...@gmail.com> wrote:
> > > > given a string tell wether it is valid or not.
> > > > string is valid if there is no substring which have the same
> substring
> > > > following it.
> >
> > > > these strings are not valid:- "stringstring","geek123123rt",
> > > > "abcadabcad","strngstingstrngsting"
> >
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